<a id="btnQuery" href="javascript:void(0);" class="easyui-linkbutton" data-options="iconCls:'eova-icon1166',plain:true" onclick="eova_query()">快速查询 </a>
<script type="text/javascript">
    function eova_query() {
    	var $widget = $('#${parentId}');
    	// post query form and reload widget data
    	$.widgetReLoad($widget, $.getFormParasObj($('#queryForm')));
		$.widgetClearSelections($widget);
    };

    $('#${queryId}').keydown(function (event) {
        if (event.keyCode == 13) {
        	eova_query();
        }
    });
</script>